Get a list of columns and their data type by passing table name on MySQL and MSSQL databases.

To get a list of columns and their data type by passing table name on MySQL and MSSQL databases.

    
    /**
     * Returns the list of columns and their data type by the table name on MySQL database.
     * @param $sqlConnection MySQL Database Connection Link
     * @param $tableName
     * @param bool $fullType
     * @return array
     */
    private function getMySqlTableColumnAndTypeList($mysqlConnection, $tableName, $fullType = false)
    {
        $table = $mysqlConnection->select("DESCRIBE $tableName");

        $fieldAndTypeList = [];
        foreach ($table as $field){
            $type = ($fullType || !str_contains($field->Type, '('))? $field->Type: substr($field->Type, 0, strpos($field->Type, '('));
            $fieldAndTypeList[$field->Field] = $type;
        }
        return $fieldAndTypeList;
    }

    /**
     * Returns the list of columns and their data type and nullable by the table name on MSSQL database.
     * @param $sqlConnection SQL Database Connection Link
     * @param $tableName
     * @return array
     */
    private function getSqlTableColumnsWithDataTypes($sqlConnection, $tableName)
    {
        $tableInfo = $sqlConnection->select("SELECT COLUMN_NAME, DATA_TYPE, IS_NULLABLE FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_NAME = '". $tableName . "'");

        $fieldAndTypeList = [];
        foreach ($tableInfo as $field){
            $isNullable = ($field->IS_NULLABLE == 'YES') ? true : false;
            $fieldAndTypeList[$field->COLUMN_NAME] = (object)['type' => $field->DATA_TYPE, 'nullable' => $field->IS_NULLABLE, 'isNullable' => $isNullable];
        }

        return $fieldAndTypeList;
    }

Raw Query in MSSQL:

SELECT COLUMN_NAME, DATA_TYPE, IS_NULLABLE
FROM INFORMATION_SCHEMA.COLUMNS
WHERE TABLE_NAME = 'your_table_name';

Raw Query in MySQL:

DESCRIBE your_table_name;

Appreciated for any feedback!